Carbon deleaving machine



April 21, 1942 J. E. EUTH CARBON DELEAVING MACHINE Filed July 28, 1941 3Sheets-Sheet 1 i Il April 21, 1942. J, E EUTH `2,280,224

CARBON DELEAVING MACHINE Filed July 28, 1941 3 Sheets-Sheet 2 April 21,1942. J, E, EUTH 2,280,224

CARBON DELEAVING MACHINE Filed July 28, 1941 3 Sheets-Sheet 3 /zvemzor.'@y j/2n E'Zu'zz,

5M zam, ma 3 Patented Apr. 21, 1942 cannon DELEAvmG MAcmNE `John E.Enth, Chicago, lll., assigner to United Auitsographlc Register Co., acorporation of lllino Application Julyzs, 1941, serial No. 404,435

9 Claims.

This invention relates to machines for separating carbon strips fromcontinuous-form stationery strips after a writing operation, and moreparticularly to a machine which is automatically controlled and willrefold the stationery strips into separate zigzag folded packs.

The primary object of the invention is to provide an automatic-deleavingmachine which may be placed in rear of a'tabulating machine or the like,and will automatically deleave and refold the stationery at whateverrate it is passed through the tabulating machine.

A further object of the invention is to provide improved guide-means forrefolding the stationery under the influence of gravity and toprovide'improved'guide-means for handling stationery of various widths.

Another object of the invention is a machine in which the carbon stripsmay be drawn through the machine and the friction between the carbonsand stationery strips will.` be sufficient to propel the stationery intothe guide device.

Another object of the invention is to provide feed-rolls for advancingthe stationery to a rotary cutter and another set 4of feed-rolls forpulling the carbon laterally `over biased turnbars, both sets offeed-rolls and cutter mechanism being driven by a single motor which iscontrolled automatically by the tension of the paper advancing to themachine.

The invention is illustrated in a preferred embodiment in theaccompanying drawings, i

which: l

Figure 1 is a broken side elevational viewof a machine embodying theinvention; Figure 2 is a machine by means of a pair of rearsets-offeedrolls II -through a rotary cutter I2 and thence folded packs I1.

to provide l fragmentary top plan view of the same; Figure 3, afragmentary side elevational view showing the automatic switch; Figure4,a fragmentary view of the opposite side of the machine from that shownin Figure 3 and showing part of the gearing; and Figure 5, a fragmentarysectional view, taken as indicated at line 5 of Figure 2.

In the embodiment illustrated, a main frame is formed by cha rel members6 connected by suitable cross-r 1 on which sheet metal curvedguide-members 3 are laterally adjustable to vaccommodate various widthsof stationery. A pack 9 of continuous-form stationery interleaved1 withcarbon strips may be supported on asuitable shelf I0 and the stationerydrawn into the rear of a tabulating machine from whence it may be drawnunder tension tothe top of the deleaving machine. I

The stationery' is drawn into the deleaving As shown in Figures 2 and 5,a pair of rearwardly extending brackets I8 support and form bearings forcarbon feed-rolls I9 which are driven from a shaft 29 by means of spurgears 2|. Above each driven roll I9 is a cross-bar 22, on which isloosely journalled a cylindrical presser roll 23. The weight of therolls 23 provides sufflcient pressure on the carbon strips I4 to producea satisfactory feeding operation. As shown in Figuresl and 5, aguide-member 24 is suspended from the brackets I8 and serves to guidethe carbonstrips `I4 away from the frame of the machine and permits themto drop into a wastebasket 25. An adjusting lock nut 26 with an arm 21permits the guide-member to be swung voutwardly to a desired fixedposition.

The stationery is drawn into the deleaving machine, directly from atabulating or typewritving machine, as stated above, by a feeding andcutting mechanism carried by plates 28 at the top and front of themachine. An electric motor 29 is mounted on a front bracket and drives ashaft 3 0 by means of a belt 3|. The shaft 30 is provided with a gear 32which meshes with a gear 33 on the lower cutter roll shaft 34, as shownin Figure 3. V The gear 33 also meshes with a spur gear 35 on the uppercutter roll shaft 36 so that the cutter shafts will rotate together atthe same rate of speed. The .cutter rolls I2 are laterally adjustable onthe shafts 34 and 36, so that they trim off marginal binding strip 31which may hold the carbon sheets I4 and stationery strips I5 togetherprior to the deleaving operation.

As shown in Figure 4, the opposite end of the shaft 34 is provided witha miter gear 38 which meshes with the miter gear 39 on the shaft 20 anddrives` the carbon feed-rolls I9. The shaft 34 is also provided with aspur gear 40 which meshes with a` larger idler gear 4I`which mesheswitha spur gear 42 on the lower feed-roll shaft 43. Fixed to the gear 42is a spur gear 42a which feed-rolls will be driven in timed relation toY serted under the feed rolls Il Withdraw the carbon laterally from theadvancing stationery.

In order that the deleaving machine may be operated automatically intimed relation to an associated tabulating machine or any other machinewhich may be operating intermittently, an automatic control is providedwhich is responsive to the tension on the stationery beingV Lwheneverthe tension in the strip is not suiiicient to hold arm 52 in theposition shown in Figure 1, the arm will drop and cause the cam 49 totip the mercury switch and thereby energize the motor and start thefeed-rolls and cutter mechanism to operate. When suilicient ten.- siondevelops in the advancing interleaved strip, it will raise the arm 52and the motor will automatically be shut oiI by the mercury switch, aswill be readily understood.

In the embodiment illustrated, the carbon is withdrawn laterally fromthe path of the stationery by means of turn-bars I3 which are removablymounted in a U-shaped rack 53 which has a supporting member 54 securedto a crossbar 55 extending between the channel members 6 of the mainframe. I'he turn-bars are shown disposed at an angle of 45, so that thecarbon may be withdrawn at right angles to the path of the stationery.

As shown in Figures 1 and 2, a special supporting guide is also providedfor the stationery after it passes the turn-bars. A supporting bar 56 isiixed to the cross-bar 55 and frictionally grips a laterally adjustablerod 51, which has one end turned upwardly, as indicated at 58. A seriesof L-shaped guide-fingers 59, separated by a spacing washer 5l, may begripped in position by a winged nut 5I. The lingers 59 serve to supportone marginal edge portion of the stationery as it passes from theturn-bars to the guide-members 3. At the front of the machine, the ilrstpasses over a table 6'2 which is slotted at 53 and is provided withlaterally adjustable guides 54.

In the embodiment illustrated, only three continuous-form strips withtwo interleaved carbon strips are shown, although more turn-bars I3 areprovided than necessary for such stationery. It will be understood,however, that the machine may be enlarged by providing additional guidesand the deleaving operation performed in exactly the same Way.

The deleaving machine is loaded after suilicient stationery hastravelled from the pack 9, and through the tabulating machine to permita three or four foot length to extend beyond the feed rolls II. 'I'heend of the strip is inbe fed through by power and all of the stripsprojected over the turn-bars I3. The power to the motor is then shutoil.' by an ordinary line switch (not shown). 'I'he free end of thestrips may then be turned back over the feed rolls II and the bottomstationery strip with its superposed carbon strip is threaded betweenthe lower and the paper may' tum-bar I3 and the support 53. Thestationery strip is threaded over the lower roll in the guide frame I6and directed over the front guidemembers 8 to refoldng position. Theadjacent superposed carbon strip is then turned over the lower bar I3and directed between the nearest carbon feed roll shaft I9 and presserroll 23. In the same way, the next lowest stationery strip and itssuperposed carbon strip is threaded between the two lower turn-bars I3,and after the stationery strip is directed into the next chute, thecarbon strip is turned up over the adjacent turn-bar and is threadedbetween the carbon feed rolls. The top stationery strip may be threadedstraight through and directed into the third chute. After smoothing outthe various strips, the line switch may be turned on again and thefeeding controlled by the automatic switch.

In operation, the interleaved stationery is drawn by the rear feed-rollsII, under tension, into the machine. If the tension increases sufcientlyto raise the arm 52, the motor will be shut off by the mercury switch toavoid danger of tearing the paper. While the motor is operating the rearfeed-rolls I I, the rotary cutters I2 and the carbon rolls 23 are drivenin timed relation. 'I'he carbon passes over the turn-bars and iswithdrawn laterally by the carbon rolls where they drop down over theguide 24 and into the wastebasket 25. The pulling of the carbon alsohelps to carry along the stationery so that it passes between the guides8 Where it is directed down into zigzag folded packs Il.

The foregoing detailed description has been given for clearness ofunderstanding only, and no unnecessary limitations should be understoodtherefrom for some modifications will be obvious to those skilled in theart.

I claim:

l. A machine for deleaving carbon strips from interconnectedcontinuous-form stationery strips, comprising: a frame to whichmarginally connected stationery strips may be drawn under tension; arotary cutting mechanism mounted on said frame to trim oir a marginalbinding edge of said stationery strips fed therethrough; feed-rolls foradvancing the strips through the cutter mechanism; guide-means fordirecting the stationery strips into separate zigzag folded relation;power-means for driving said cutting mechanism and feed-rolls in timedrelation; and control-means for energizing the power-means, saidcontrol-means having an arm resting on the strips advancing to saidfjrame so as to make the control-means responsive to the tension on saidstrips.

2. A device as specied in claim 1, in which the feed-rolls, in rear ofthe cutter mechanism, engage only the carbon strips.

3. A device as specified in claim 1, in which angularly biased turn-barsare provided between the stationery strips so that the carbons may bedrawn laterally from the path of the stationery strips, and thefeed-rolls will engage the carbon strips after they have been deleavedfrom the said stationery strips.

4. A machine for deleaving carbon strips from interconnectedcontinuous-form stationery strips, comprising: a frame over whichcontinuousform stationerystrips interleaved with carbon strips may bedrawn under tension; feed-rolls adapted to engage the carbon strips andseparate them from said stationery strips; guide-means for directing theseparated stationery strips into lfor controlling said drive-mechanism.v l 5, in which wardly under the influence 'of gravity; electricpower-means for driving the feed-rolls; and `a advancing to the frame sothat the starting and l zigzag folded relation -as theyadvancedowninterctxmnecsted :continuous-'forni v -stationery strips,comprising: a frame over which continucontrol-switch for saidpower-means having an f operating arm resting on the interleaved'strips' stopping of the machine is responsive to the tension on saidstrips.

5. A machine for deleaving carbon strips from interconnectedcontinuousform stationery strips, comprising: a frame over whichcontinu-l ous-form stationery strips interleaved with carbon strips maybe drawn under tension; a pair of rear feed-rollsfor Aadvancing saidinterleaved d strips; a pair of carbon feed-rolls adapted vto engage thecarbon strips and separate .them from the stationery strips; unitaryelectric drivemechanism .for driving both sets of 'feed-rolls lin timedrelation; land an electric.v switch, responsive to .the tension in theinterleaved stationery,

6. A device as specified in claim angularly biased turn-bars aredisposed in advance of the rear feed-rolls so that the carbon stripsvmay be withdrawn laterally from the stationery strips, and the carbonfeed-rollsare horizontally disposed at a right angle to the rearfeed-rolls.

ous-form stationery strips interleaved with carbon strips may be drawnunder tension;` a pair of rear feed-rolls for advancing lsaidinterleaved strips; a pair of carbon feed-rollsv adapted to engage thecarbon strips and separate them from the stationery strips;` angularlybiased turn-bars in advance of therear feed-rolls for directing thecarbon strips laterally out of interleaved relation; guide-means fordirecting the separated stationery strips vinto' zigzag folded relationas they advance downwardly under the influence of gravity; -electricpower-means for driving the f' feed-rolls; and a control-switch for saidpowermeans vhaving an operating armv resting on the interleaved stripsadvancing to the frame so that the starting'and'stopping of the machine1s responsive to the tension on said strips.

8. Avdevice as specied in' claim 7, in which the guide-means includes a`plurality of curved sheet metal Strips which are laterally adjustable 7.A machine for deleaving carbon strips `from on cross-barsprovided on'the frame of the ma- 9. A device as lspecified in claim 7, in which a Ushaped adjustable guide is provided, adjacent tothe carbon feed-rolls,to direct the carbon strips laterally away from the machine`

